DANSK DS/ISO 11146-1:2021 激光器和激光相關(guān)設(shè)備 激光光束寬度、發(fā)散角和光束傳播比的測試方法 第1部分:像散光束和簡單像散光束
Lasers and laser-related equipment – Test methods for laser beam widths, divergence angles and beam propagation ratios – Part 1: Stigmatic and simple astigmatic beams